Examples of org.jbox2d.dynamics.contacts.ContactEdge

org.jbox2d.dynamics.contacts.ContactEdge
A contact edge is used to connect bodies and contacts together in a contact graph where each body is a node and each contact is an edge. A contact edge belongs to a doubly linked list maintained in each attached body. Each contact has two contact nodes, one for each attached body. @author daniel

    assert (m_jointCount > 0);
    --m_jointCount;


    // If the joint prevents collisions, then flag any contacts for filtering.
    if (collideConnected == false) {
      ContactEdge edge = bodyB.getContactList();
      while (edge != null) {
        if (edge.other == bodyA) {
          // Flag the contact for filtering at the next time step (where either
          // body is awake).
          edge.contact.flagForFiltering();

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    } else {
      last.m_next = fixture.m_next;
    }


    // Destroy any contacts associated with the fixture.
    ContactEdge edge = m_contactList;
    while (edge != null) {
      Contact c = edge.contact;
      edge = edge.next;


      Fixture fixtureA = c.getFixtureA();

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    m_force.setZero();
    m_torque = 0.0f;


    // Delete the attached contacts.
    ContactEdge ce = m_contactList;
    while (ce != null) {
      ContactEdge ce0 = ce;
      ce = ce.next;
      m_world.m_contactManager.destroy(ce0.contact);
    }
    m_contactList = null;

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      for (Fixture f = m_fixtureList; f != null; f = f.m_next) {
        f.destroyProxies(broadPhase);
      }


      // Destroy the attached contacts.
      ContactEdge ce = m_contactList;
      while (ce != null) {
        ContactEdge ce0 = ce;
        ce = ce.next;
        m_world.m_contactManager.destroy(ce0.contact);
      }
      m_contactList = null;
    }

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    }


    // TODO_ERIN use a hash table to remove a potential bottleneck when both
    // bodies have a lot of contacts.
    // Does a contact already exist?
    ContactEdge edge = bodyB.getContactList();
    while (edge != null) {
      if (edge.other == bodyA) {
        Fixture fA = edge.contact.getFixtureA();
        Fixture fB = edge.contact.getFixtureB();
        int iA = edge.contact.getChildIndexA();

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    else {
      last.m_next = fixture.m_next;
    }
    
    // Destroy any contacts associated with the fixture.
    ContactEdge edge = m_contactList;
    while (edge != null) {
      Contact c = edge.contact;
      edge = edge.next;
      
      Fixture fixtureA = c.getFixtureA();

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      for (Fixture f = m_fixtureList; f != null; f = f.m_next) {
        f.destroyProxy(broadPhase);
      }
      
      // Destroy the attached contacts.
      ContactEdge ce = m_contactList;
      while (ce != null) {
        ContactEdge ce0 = ce;
        ce = ce.next;
        m_world.m_contactManager.destroy(ce0.contact);
      }
      m_contactList = null;
    }

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    if (bodyA == bodyB) {
      return;
    }
    
    // Does a contact already exist?
    ContactEdge edge = bodyB.getContactList();
    while (edge != null) {
      if (edge.other == bodyA) {
        Fixture fA = edge.contact.getFixtureA();
        Fixture fB = edge.contact.getFixtureB();
        if (fA == fixtureA && fB == fixtureB) {

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      destroyJoint(je0.joint);
    }
    body.m_jointList = null;
    
    // Delete the attached contacts.
    ContactEdge ce = body.m_contactList;
    while (ce != null) {
      ContactEdge ce0 = ce;
      ce = ce.next;
      m_contactManager.destroy(ce0.contact);
    }
    body.m_contactList = null;

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    Body bodyA = def.bodyA;
    Body bodyB = def.bodyB;
    
    // If the joint prevents collisions, then flag any contacts for filtering.
    if (def.collideConnected == false) {
      ContactEdge edge = bodyB.getContactList();
      while (edge != null) {
        if (edge.other == bodyA) {
          // Flag the contact for filtering at the next time step (where either
          // body is awake).
          edge.contact.flagForFiltering();

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Related Classes of org.jbox2d.dynamics.contacts.ContactEdge

org.jbox2d.dynamics.Body

org.jbox2d.dynamics.ContactManager

org.jbox2d.dynamics.Fixture

org.jbox2d.dynamics.World

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